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Code Issues Releases Activity

Allocate enough memory for audio_buf to fit a full output frame.

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Also, use audio_buf when encoding the final frame.
Fixes Issue 1921.

Originally committed as revision 23570 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Justin Ruggles 2010-06-10 19:40:56 +00:00
parent 79d46cbea6
commit 79c85beba8
1 changed files with 5 additions and 4 deletions
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ffmpeg.c
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@ -813,6 +813,7 @@ need_realloc:
audio_buf_size= (allocated_for_size + isize*dec->channels - 1) / (isize*dec->channels);
audio_buf_size= (audio_buf_size*enc->sample_rate + dec->sample_rate) / dec->sample_rate;
audio_buf_size= audio_buf_size*2 + 10000; //safety factors for the deprecated resampling API
audio_buf_size= FFMAX(audio_buf_size, enc->frame_size);
audio_buf_size*= osize*enc->channels;
audio_out_size= FFMAX(audio_buf_size, enc->frame_size * osize * enc->channels);
@ -1832,17 +1833,17 @@ static int output_packet(AVInputStream *ist, int ist_index,
int osize = av_get_bits_per_sample_format(enc->sample_fmt) >> 3;
int fs_tmp = enc->frame_size;
av_fifo_generic_read(ost->fifo, samples, fifo_bytes, NULL);
av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
enc->frame_size = fifo_bytes / (osize * enc->channels);
} else { /* pad */
int frame_bytes = enc->frame_size*osize*enc->channels;
if (samples_size < frame_bytes)
if (allocated_audio_buf_size < frame_bytes)
av_exit(1);
memset((uint8_t*)samples+fifo_bytes, 0, frame_bytes - fifo_bytes);
memset((uint8_t*)audio_buf+fifo_bytes, 0, frame_bytes - fifo_bytes);
}
ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, samples);
ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
ost->st->time_base.num, enc->sample_rate);
enc->frame_size = fs_tmp;